Laser Vision

OCT Machine: Next Evolution in Laser Eye Surgery

Introducing the OCT Machine: Next Evolution in Laser Eye Surgery

Eye examinations and analysis have come a long way in the last few decades evdienced by the OCT machine. The increase in new technology grows every day, and there are new machines like the OCT that are being introduced to help hospitals, dentists, and surgeries diagnose and detect medical conditions earlier and it’s becoming the next evolution in laser eye surgery.

What is an OCT Scan Machine?

Optical coherence tomography (OCT) was first introduced by Carl Zeiss in 1996. It is a growing technology that performs high-resolution imaging for the eyes. OCT is similar to ultrasound images, except that it uses light waves instead of soundwaves. It can provide cross-sectional images of the structural tissue in real-time and to scale.

OCT machines function as a powerful imaging technology for early medical diagnostics. By using time-delayed information within the light waves, an OCT system can construct a deep analysis of the structure of your eye. The method has been established in eye imaging and is being researched and tested in other biomedical areas. These include endoscopic imaging, gastrointestinal, and cardiovascular systems too.

OCT Scanning Technology

As a non-invasive imaging method, OCT produces high-resolution images of tissue. It penetrates into the eyes with near-infrared light which has long wavelengths. It’s through this technology that physicians and specialists like us, can diagnose diseases earlier than before.

An OCT scan is separate from an eye examination and is usually recommended for people aged 25 and over. Additionally, its also recommended if patients have a history of eye disease.

The machine detects the most delicate parts of the eye. The OCT captures a fundus photograph and a cross-sectional 3D scan on the back of the eye simultaneously. This can detect problems within the eye that could not be seen as easily before. Optical coherence tomography is becoming adopted by various arms of medicine. Within laser eye surgery services and clinics, OCT is already well established.

OCT Machine & Laser Eye Surgery

In vision correction treatments, this device has been increasingly used in various clinical situations. These involve corneal thickness measurements (CCT), depth assessments, and other applications.

As CCT is important for pretreatment scanning and surgical planning, the OCT machine can be used to evaluate this thickness and also measure the thickness of a stroma. For LASIK laser eye surgery preparation, the OCT machine can build a 3D image of the structure of the eye. This is so the surgery can be as accurate as possible. The OCT device can best detect LASIK flaps in the corneal zone where the thinner parts of the eye are located. This makes it the most important area to get right for planning surgery.

The OCT machine has been a complete evolution for laser eye surgery as the amount of detail that we thought could be achieved has been expanded even further. It’s a revolution to the precise information and structure professionals need to perform surgeries, like us at LaserVision.

What Happens at an OCT Scan?

An OCT scan will be over in just a few minutes, so you don’t need to worry about taking a day off work or moving your calendar around. But, here’s what to expect at your Optical Coherence Tomography scan:

  • A colleague will scan your eyes with a high-tech OCT camera.
  • The optometrist will examine the images using built-in tools and once they are done you will have a discussion with them.
  • Your optometrist can then compare your new scan results with any old ones; this will help with an early diagnosis and viewing even the smallest of changes.

Even though the scan is totally painless, you may feel slightly dazzled for a few seconds. Don’t worry this is totally normal and should stop quickly. It’s a similar feeling to having your photograph taken with a flash.

Choose LaserVision for Your Vision Correction Treatments

Please note that any self-diagnosis is not recommended; the information above is a guide to provide you with information so that you can visit our medical experts.

Our team of eye surgeons will help to guide you in the right choice for you based on your requirements. Contact us to book an appointment for a full consultation and find out more about Optical Coherence Tomography and any other vision correction treatments you require.

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Colin D. profile picture
Colin D.
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I was initially going to write a brief review, but thought it might be beneficial to anyone considering using LaserVision Prema, if I gave a more detailed account of my personal experience? After 10 years of my eyesight gradually deteriorating due to age, wearing glasses became a necessity for all distances, which constantly frustrated me after having had perfect vision for most of my life. I'd heard of lens replacement surgery, so looked deeper into it and due to their positive reviews, settled on LaserVision Prema for an initial consultation to discuss options. From the outset, the experience has been amazing. The staff are friendly, making patients feel very welcome and at ease, there's no pressure to agree to have anything done and any concerns you have will be addressed, including any negative points you may need to consider? During the initial consultation, my eyes were thoroughly examined using a variety of methods and equipment, which gave me confidence the results would be accurate. Following this, I met with Rakesh, who performs the operations, to discuss the different options available based on the results. Fortunately, my eyes were suitable for any of the procedures. Rakesh took the time to make sure I knew exactly what the pros and cons of each lens type were, he also ensured I was aware that although my vision would likely be much better, nothing available at the present time will give me perfect sight back? In the end, I decided to opt for lenses which would improve vision at all distances. On the day of the operation, staff do everything to relax patients, and nothing feels rushed. The whole experience was easy and completely painless, taking approximately 15-20 minutes per eye. Throughout the procedure Rakesh will ensure you're fine. Although you can see enough to walk immediately afterwards, your vision is initially very much reduced, so you won't be able to drive. I'd booked a room in the Travelodge opposite in case I wasn't able to travel after the operation and walked to it without assistance. LaserVision Prema provide you with various eye drops, required to be used several times a day for a couple of months to ensure your eyes properly heal. I used these as prescribed and didn't experience any problems. As the day went on my vision started slowly improving, to the point where I could watch a film on my iPad, without it being too blurry. Later in the evening, I looked out the window and was immediately aware of a massive improvement to my distance vision, being able to see things clearly at distances I previously would have needed glasses for. The only discomfort in the entire process was in the evening after I'd had the operation, my eyes felt like they were gritty and began to water for two or three hours. Although it was quite annoying and noticeable, it was manageable. After a few hours my eyes stopped watering and the grittiness was at the point where I no longer thought about it. Rakesh called me late in the evening, in his own time, to ask how I was getting on and make sure I was ok? This is the level of care LaserVision provide. The morning after the operation, the improvement to my near, intermediate and far distance sight was incredible. This was done in December 2025 and since then, I haven't needed to ever wear glasses again for anything, at any distance - I don't even own a pair now! To give an idea, I can read unaided N4 size words on a reading chart. As Rakesh pointed out, it hasn't given me totally pin sharp eyesight back, but it really isn't far off and seven months later, I'm still amazed at what LaserVision Prema was able to achieve. The operation itself isn't the end of the process, you will also receive an aftercare service of follow up visits to check everything is as expected and to ensure you are happy with your progress. As mentioned, the results in how much your eyesight can be improved differs from person to person. This review is purely to highlight how impressed I am with LaserVision Prema, their professionalism and level of care provided to patients.
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Fab Smith profile picture
Fab Smith
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Tim Ford literally gave me my vision back — life-changing care! For years I’ve struggled with contact lenses, feeling frustrated and limited by my keratoconus. But from the moment I met Tim Ford, everything changed. He didn’t rush; he truly listened to my challenges, understood exactly what I’d been going through, and carefully created a personalised plan that finally works for me. His expertise, patience, and kindness are incredible — he didn’t just treat my eyes, he cared about restoring my quality of life. I can’t believe the difference; it feels like he has truly given me my vision back. If you’re looking for an optometrist who goes above and beyond, especially for complex eye health, Tim is absolutely amazing. Thank you so much for everything! 🙏✨
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Nigel Steward
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Excellent professional care.
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Darren Toomer profile picture
Darren Toomer
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I have been delighted with the level of care provided by Rakesh and his team during my eye lens replacement surgery. The results of the surgery have been nothing less than life-changing. I shall always remain extremely grateful to the gift of 20:20 sight given to me.
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Peter Dixon profile picture
Peter Dixon
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Excellent, could not have asked for more.
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ros summers profile picture
ros summers
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Excellent service, very friendly approachable staff. My eye condition was identified quickly & medication prescribed. So pleased I decided to book my initial appointment. Highly recommended
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Janey Power profile picture
Janey Power
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Absolutely incredible service so far. The most attentive staff that greet me by name and make me feel so valued. My Ophthalmic Surgeon, Mr Rakesh Jayaswal has made everything understandable and couldn’t be a nicer, more relatable gentleman than he is. The professionalism from all staff especially Vicky, Tracey, Jane and Rakesh, has made me feel so secure and I know I’m in safe hands. The lens replacement surgery was a bit strange but painless and over quickly. Now just looking forward to my recovery. My sincere thanks to all involved . It is now 5 months post surgery and I cannot believe the quality of the aftercare that I have received from Vicky and Rakesh. My biggest concern was that after paying for surgery, I would just be left then to get on with things but they have seen me regularly and given me the most incredible service. Nothing was too much trouble and they have checked and checked my vision every step of the way. I have been made to feel like an important guest and their warmth and concern has made me feel so special. For anyone considering Prema, please take my word for the most incredible experience and I can read, see and do jigsaws with NO GLASSES. Words are not enough to thank them for what they have given me. 5 stars are not enough!!!
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Alison Philp
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Caring, empathetic staff with a lovely atmosphere in the clinic. The time taken to make sure I was happy with the treatment was never rushed & the whole procedure was so much more relaxed than I would have thought possible. Amazing.
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Robert James profile picture
Robert James
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Very well looked after by Mr Tapper at his Nuffield Woking clinic today, following a capsulotomy by him 6 weeks ago. I now have greatly improved vision in the affected eye. The LaserVision support team are also excellent. I would not hesitate to recommend this clinic to others.
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Lynette Marshall profile picture
Lynette Marshall
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If you are nervous about eye surgery, I highly recommend LaserVision Prema in Portsmouth. They looked after me so well from start to finish. Mr. Rakesh Jayaswal is a true gentleman whose calm manner and precision made me feel completely comfortable. The team is professional, kind, and happy to answer any questions. A five-star experience!
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